9 Surgical Site Infection (SSI) Event

[Pages:39]January 2021

Surgical Site Infection Event (SSI)

Table of Contents

Introduction .................................................................................................................................... 1 Settings............................................................................................................................................ 2 Requirements.................................................................................................................................. 2 Surveillance Methods ..................................................................................................................... 3 Operative Procedure Codes ............................................................................................................ 3 Definition of an NHSN Operative Procedure ..........................................................................................4 SSI Event Details.............................................................................................................................. 5 Denominator for Procedure Details................................................................................................ 6 Table 1. Surgical Site Infection Criteria ......................................................................................... 10 Table 2. Surveillance Periods for SSI Following Selected NHSN Operative Procedure Categories15 Table 3. Specific Sites of an Organ/Space SSI ............................................................................... 16 SSI Numerator (SSI Event) Reporting ............................................................................................ 17 Table 4. NHSN Principal Operative Procedure Category Selection List ........................................ 22 SSI Denominator for Procedure Reporting ................................................................................... 23 Data Analyses................................................................................................................................ 27 References .................................................................................................................................... 32 APPENDIX. Specific event types available for SSI attribution by NHSN procedure category. ..... 33

Introduction:

In 2014, a total of 14.2 million operative procedures were performed in the inpatient setting in United States hospitals1. The CDC healthcare-associated infection (HAI) prevalence survey found that there were an estimated 110,800 surgical site infections (SSIs) associated with inpatient surgeries in 20152. Based on the 2019 HAI data results published in the NHSN's HAI Progress Report, about a 7% decrease in the standardized infection ratio (SIR) related to all NHSN operative procedure categories combined was reported between 2015 and 2019. About a 9% decrease in SIR related to the Surgical Care Improvement Project (SCIP) NHSN operative procedure categories was reported between 2015 and 20193.

While advances have been made in infection control practices, including improved operating room ventilation, sterilization methods, barriers, surgical technique, and availability of antimicrobial prophylaxis, SSIs remain a substantial cause of morbidity, prolonged

CDC 9 - 1

January 2021

Procedure-associated Module SSI Events

hospitalization, and death. SSI is associated with a mortality rate of 3%, and 75% of SSIassociated deaths are directly attributable to the SSI4. SSI is the most costly HAI type with an estimated annual cost of $3.3 billion, and is associated with nearly 1 million additional inpatientdays annually5,6.

Surveillance of SSI with feedback of appropriate data to surgeons has been shown to be an important component of strategies to reduce SSI risk7-10. A successful surveillance program includes the use of epidemiologically-sound infection definitions and effective surveillance methods, stratification of SSI rates according to risk factors associated with SSI development, and data feedback8,9. The most recent CDC and Healthcare Infection Control Practices Advisory Committee Guideline for the Prevention of Surgical Site Infection was published in 2017; this guideline provides evidence-based strategies for SSI prevention10.

Settings:

Surveillance of surgical patients will occur in any inpatient facility and/or hospital outpatient procedure department (HOPD) where the selected NHSN operative procedure(s) are performed.

Note: Ambulatory Surgery Centers (ASCs) should use the Outpatient Procedure Component (OPC) to perform SSI surveillance.

Requirements:

? Perform surveillance for SSI following at least one NHSN operative procedure category (that is included in ICD-10-PCS and/or CPT NHSN operative procedure code mapping) as indicated in the Patient Safety Monthly Reporting Plan (CDC 57.106).

? Collect SSI event (numerator) and operative procedure (denominator) data on all procedures included in the selected operative procedure categories indicated on the facility's monthly reporting plan.

? A procedure must meet the NHSN definition of an operative procedure in order to be included in SSI surveillance. All procedures included in the NHSN monthly surveillance plan are followed for superficial incisional, deep incisional, and organ/space SSI events and the type of SSI reported must reflect the deepest tissue level where SSI criteria is met during the surveillance period.

? SSI events where infection present at the time of surgery (PATOS) = YES are reported to NHSN.

? An SSI event is attributed to the facility in which the NHSN operative procedure is performed.

Note: Facilities that have identified potential SSI events that are attributable to procedures performed at a different facility should provide details of the potential events to the facility where the procedure was originally performed.

9 - 2

January 2021

Procedure-associated Module SSI Events

Surveillance Methods:

SSI monitoring requires active, patient-based, prospective surveillance. Concurrent and postdischarge surveillance methods should be used to detect SSIs following inpatient operative procedures and post-discharge surveillance for outpatient operative procedures.

For example, these methods include: ? Review of medical records or surgery clinic patient records o Admission, readmission, ED, and OR logs o Patient charts for signs and symptoms of SSI Acceptable documentation includes patient-reported signs or symptoms within the SSI surveillance period, documented in the medical record by a healthcare professional. o Lab, imaging, other diagnostic test reports o Clinician/healthcare professional notes o ICD-10-CM Infection Diagnosis Codes to prompt further review ? Visit the ICU and wards ? talk to primary care staff ? Surgeon surveys by mail or telephone ? Patient surveys by mail or telephone (though patients may have a difficult time assessing their infections).

Any combination of these methods (or other methods identified by the facility) with the capacity to identify all SSIs is acceptable for use; however, NHSN criteria for SSI must be used. To minimize Infection Preventionists' (IPs) workload of collecting denominator data, operating room data may be downloaded. (See file specifications at: ).

Operative Procedure Codes:

Operative procedure codes are used in health care settings as a way to communicate uniform information. This wide use of operative procedure codes allows NHSN to incorporate the operative procedure codes as a means to standardize NHSN SSI surveillance reporting. The operative procedure codes are required to determine the correct NHSN operative procedure category to be reported.

NHSN uses the following operative procedure coding systems:

? International Classification of Diseases, 10th Revision Clinical Modifications/Procedure Coding System (ICD-10-CM/PCS), as defined by the ICD-10 Coordination and Maintenance Committee of the National Center for Health Statistics and the Centers for Medicare and Medicaid Services (CMS).

9 - 3

January 2021

Procedure-associated Module SSI Events

? Current Procedural Terminology (CPT), as defined by the American Medical Association (AMA).

The mapping for ICD-10-PCS and CPT NHSN operative procedures is found in the "Supporting Materials" section of the SSI Protocol on the NHSN website. The mapping documents include a general definition for each NHSN operative procedure category as well as a description for each individual operative procedure code. Entering the operative procedure code into the NHSN application remains optional.

Note: The former NHSN Category "OTH - other" is not mapped to ICD-10-PCS and CPT NHSN operative procedure codes. For in-plan reporting purposes, an infection associated with a procedure that is not included in one of the NHSN operative procedure categories is not considered an NHSN SSI, although the infection may be investigated as a HAI.

Definition of an NHSN Operative Procedure:

An NHSN Operative Procedure is a procedure:

? that is included in the ICD-10-PCS and/or CPT NHSN operative procedure code mapping And

? takes place during an operation where at least one incision (including laparoscopic approach and cranial Burr holes) is made through the skin or mucous membrane, or reoperation via an incision that was left open during a prior operative procedure And

? takes place in an operating room (OR), defined as a patient care area that met the Facilities Guidelines Institute's (FGI) or American Institute of Architects' (AIA) criteria for an operating room when it was constructed or renovated11. This may include an operating room, C-section room, interventional radiology room, or a cardiac catheterization lab.

Exclusions: Otherwise eligible procedures that are assigned an ASA score of 6 are not eligible for NHSN SSI surveillance.

9 - 4

January 2021

Procedure-associated Module SSI Events

SSI Event Details

The Infection Window Period (IWP), Present on Admission (POA), Healthcare-Associated Infection (HAI), and Repeat Infection Timeframe (RIT) definitions do not apply to the SSI protocol. For additional POA and PATOS details, see SSI Event Reporting Instructions #2 and #3.

Date of event (DOE):

For an SSI, the date of event is the date when the first element used to meet the SSI infection criterion occurs for the first time during the SSI surveillance period. The date of event must fall within the SSI surveillance period to meet SSI criteria. The type of SSI (superficial incisional, deep incisional, or organ/space) reported and the date of event assigned must reflect the deepest tissue level where SSI criteria are met during the surveillance period. Synonym: infection date.

All elements required to meet an SSI criterion usually occur within a 7-10 day timeframe with no more than 2-3 days between elements. The elements must be relational to each other, meaning you should ensure the elements all associate to the SSI, and this can only happen if elements occur in a relatively tight timeframe. Each case differs based on the individual elements occurring and the type of SSI.

Secondary BSI Attribution Period for SSI:

The secondary BSI attribution period for SSI is a 17-day period that includes the date of SSI event, 3 days prior, and 13 days after. For detailed instructions on determining whether identification of organisms from a blood specimen represents a secondary BSI, refer to the Secondary BSI Guide (Appendix B of the BSI Event Protocol).

9 - 5

January 2021

Procedure-associated Module SSI Events

Denominator for Procedure Details

Additional guidance can be found within the Instructions for Completion of Denominator for Procedure Form (CDC 57.121).

ASA physical status:

Assessment by the anesthesiologist of the patient's preoperative physical condition using the American Society of Anesthesiologists' (ASA) Physical Status Classification System12. Patient is assigned an ASA score of 1-6 at time of surgery.

Note: Do NOT report procedures with an ASA physical status of 6 (a declared brain-dead patient whose organs are being removed for donor purposes) to NHSN.

Diabetes:

The NHSN SSI surveillance definition of diabetes indicates that the patient has a diagnosis of diabetes requiring management with insulin or a non-insulin anti-diabetic agent. This includes:

? Patients with "insulin resistance" who are on management with anti-diabetic agents. ? Patients with gestational diabetes. ? Patients who are noncompliant with their diabetes medications.

The ICD-10-CM diagnosis codes that reflect the diagnosis of diabetes are also acceptable for use to answer YES to the diabetes field question on the denominator for procedure entry if they are documented during the admission where the procedure is performed. These codes are found on the NHSN website in the SSI section under "Supporting Materials".

The NHSN definition of diabetes excludes patients with no diagnosis of diabetes. The definition also excludes patients who receive insulin for perioperative control of hyperglycemia but have no diagnosis of diabetes.

Duration of operative procedure:

The interval in hours and minutes between the Procedure/Surgery Start Time and the Procedure/Surgery Finish Time, as defined by the Association of Anesthesia Clinical Directors (AACD)13:

? Procedure/Surgery Start Time (PST): Time when the procedure is begun (for example, incision for a surgical procedure).

? Procedure/Surgery Finish (PF): Time when all instrument and sponge counts are completed and verified as correct, all postoperative radiologic studies to be done in the OR are completed, all dressings and drains are secured, and the physicians/surgeons have completed all procedure-related activities on the patient.

9 - 6

January 2021

Procedure-associated Module SSI Events

Emergency operative procedure:

A procedure that is documented per the facility's protocol to be an Emergency or Urgent procedure.

General anesthesia:

The administration of drugs or gases that enter the general circulation and affect the central nervous system to render the patient pain free, amnesic, unconscious, and often paralyzed with relaxed muscles. This does not include conscious sedation.

Height:

The patient's most recent height documented in the medical record in feet (ft.) and inches (in.), or meters (m).

NHSN Inpatient Operative Procedure:

An NHSN operative procedure performed on a patient whose date of admission to the healthcare facility and the date of discharge are different calendar days.

NHSN Outpatient Operative Procedure:

An NHSN operative procedure performed on a patient whose date of admission to the healthcare facility and date of discharge are the same calendar day.

Non-primary Closure:

The closure of the surgical wound in a way which leaves the skin level completely open following the surgery. Closure of any portion of the skin represents primary closure (see Primary Closure definition below). For surgeries with non-primary closure, the deep tissue layers may be closed by some means (with the skin level left open), or the deep and superficial layers may both be left completely open. Wounds with non-primary closure may or may not be described as "packed" with gauze or other material, and may or may not be covered with plastic, "wound vacs," or other synthetic devices or materials. Examples:

? Laparotomy in which the incision was closed to the level of the deep tissue layers, sometimes called "fascial layers" or "deep fascia," but the skin level was left open.

? The abdomen is left completely open after the surgery (an "open abdomen").

Primary Closure:

The closure of the skin level during the original surgery, regardless of the presence of wires, wicks, drains, or other devices or objects extruding through the incision. This category includes surgeries where the skin is closed by some means. Thus, if any portion of the incision is closed at the skin level, by any manner, a designation of primary closure should be assigned to the surgery.

9 - 7

January 2021

Procedure-associated Module SSI Events

Note: If a procedure has multiple incision/laparoscopic trocar sites and any of the incisions are closed primarily then the procedure technique is recorded as primary closed.

Scope:

An instrument used to reach and visualize the site of the operative procedure. In the context of an NHSN operative procedure, use of a scope involves creation of several small incisions to perform or assist in the performance of an operation rather than use of a traditional larger incision (specifically, open approach).

ICD-10-PCS codes can be helpful in answering this scope question. The fifth character indicates the approach to reach the procedure site:

ICD-10 5th Character

0 3

4 7 8 F

Approach

Open Percutaneous (Included only in CRAN and VSHN categories- procedures with BURR holes) Percutaneous endoscopic Via natural or artificial opening Via natural or artificial opening with endoscopic Via natural or artificial opening with percutaneous endoscopic assistance

NHSN Scope Designation

NO NO

YES NO NO YES

Note: If a procedure is coded as open and scope then the procedure should be reported to NHSN as Scope = NO. The open designation is considered a higher risk procedure.

For CPT codes, the scope question can be answered based on the procedure code description. Using HYST code 58570 as an example, the procedure code description indicates Laparoscopy, surgical, with total hysterectomy. Laparoscopy is Scope = YES.

HYST

58570

Laparoscopy, surgical, with total hysterectomy, for uterus 250 g or less

9 - 8

 ................
................

In order to avoid copyright disputes, this page is only a partial summary.

Google Online Preview   Download